1991 Australian motorcycle Grand Prix

  1991 Australian Grand Prix
Race details
Race 2 of 15 races in the
1991 Grand Prix motorcycle racing season
Date7 April 1991
Official nameTooheys Australian Motorcycle Grand Prix
LocationEastern Creek Raceway
Course
  • Permanent racing facility
  • 3.930 km (2.442 mi)
500cc
Pole position
Rider Wayne Rainey Yamaha
Time 1:30.948
Fastest lap
Rider Wayne Rainey Yamaha
Time 1:31.455
Podium
First Wayne Rainey Yamaha
Second Michael Doohan Honda
Third John Kocinski Yamaha
250cc
Pole position
Rider Luca Cadalora Honda
Time 1:33.926
Fastest lap
Rider Luca Cadalora Honda
Time 1:34.180
Podium
First Luca Cadalora Honda
Second Helmut Bradl Honda
Third Carlos Cardús Honda
125cc
Pole position
Rider Loris Capirossi Honda
Time 1:40.057
Fastest lap
Rider Loris Capirossi Honda
Time 1:39.401
Podium
First Loris Capirossi Honda
Second Fausto Gresini Honda
Third Noboru Ueda Honda

The 1991 Australian motorcycle Grand Prix was the second round of the 1991 Grand Prix motorcycle racing season. The race took place on the weekend of 5–7 April 1991 at Eastern Creek Raceway in Sydney, New South Wales. It was the first of six times the Australian motorcycle Grand Prix would be held at Eastern Creek before moving permanently back to Phillip Island in 1997.